Gaya APA

Widiati, U. (2009). English SMA/MA Grade XI : Natural Science and Social Science Programmes (cet.1). Jakarta: Bumi Aksara.

Gaya MLA

Widiati, Utami. "English SMA/MA Grade XI : Natural Science and Social Science Programmes". cet.1 Jakarta: Bumi Aksara, 2009. Text.